SP Picture for Scalable Video Coding

  • Jie Jia
  • Hae-Kwang Kim
  • Hae-Chul Choi
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4872)

Abstract

This paper investigates an extension of the SP picture from the H.264/AVC to the scalable video coding (SVC), which has been recently developed and standardized as the scalable extension of the H.264/AVC. In comparison with the scalable profiles of previous video coding standards, the SVC has achieved significant improvement in both coding efficiency and scalability in temporal, spatial and fidelity, which efficiently provides coded stream wide adaptivity to dynamic network conditions as well as diverse clients. In communication environments, this efficient adaptivity can be provided by bit stream switching between different scalable layers. The current SVC supports bit stream switching only at instantaneous decoding refresh (IDR) access unit. However, in order to provide instantaneous switching capability, the IDR picture needs to be frequently coded in the SVC stream, which dramatically decreases the coding efficiency. Therefore, SP picture for the SVC is proposed in this paper for efficient bit stream switching. Performance analysis shows that the SP picture for the SVC provides an average 1.2 dB PSNR enhancement over the IDR picture while providing similar functionalities.

Keywords

Scalable Video Coding bitstream switching SP picture 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Jie Jia
    • 1
  • Hae-Kwang Kim
    • 1
  • Hae-Chul Choi
    • 1
  1. 1.Department of Computer Science, Sejong University, 143-747, Seoul, Korea, Radio & Broadcasting Division, ETRI, 305-700, DaejeonKorea

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